disk := disks[n]
		objLayer.(*erasureServerPools).serverPools[0].erasureDisksMu.Unlock()
		return disk
	}

	// Remove 4 disks.
	setDisks(nil, nil, nil, nil)

	// Create delete marker under quorum.
	objInfo, err := objLayer.DeleteObject(ctx, bucket, object, ObjectOptions{Versioned: true})
	if err != nil {
		t.Fatal(err)
	}

	// Restore...
	setDisks(orgDisks[:4]...)

	if quorum <= 0 {
		quorum = 1
	}
	if len(versions) < quorum || len(versions) == 0 {
		return nil
	}
	if len(versions) == 1 {
		return versions[0]
	}
	if quorum == 1 {
		// No need for non-strict checks if quorum is 1.
		strict = true
	}
	// Shallow copy input
	versions = append(make([][]xlMetaV2ShallowVersion, 0, len(versions)), versions...)

			Optional:    true,
			Type:        "duration",
		},
		config.HelpKV{
			Key:         apiListQuorum,
			Description: `set the acceptable quorum expected for list operations e.g. "optimal", "reduced", "disk", "strict", "auto"` + defaultHelpPostfix(apiListQuorum),
			Optional:    true,
			Type:        "string",
		},
		config.HelpKV{

				continue
			}
		}
	}
}

// Wrapper for calling PutObject tests for both Erasure multiple disks case
// when quorum is not available.
func TestObjectAPIPutObjectDiskNotFound(t *testing.T) {
	ExecObjectLayerDiskAlteredTest(t, testObjectAPIPutObjectDiskNotFound)
}

// Tests validate correctness of PutObject.

remote_transport_deadline       (duration)  set the deadline for API requests on remote transports while proxying between federated instances e.g. "2h" (default: '2h')
list_quorum                     (string)    set the acceptable quorum expected for list operations e.g. "optimal", "reduced", "disk", "strict", "auto" (default: 'strict')
replication_priority            (string)    set replication priority (default: 'auto')

func isErrReadQuorum(err error) bool {
	var rquorum InsufficientReadQuorum
	return errors.As(err, &rquorum)
}

// isErrWriteQuorum check if the error type is InsufficientWriteQuorum
func isErrWriteQuorum(err error) bool {
	var rquorum InsufficientWriteQuorum
	return errors.As(err, &rquorum)
}

// isErrObjectNotFound - Check if error type is ObjectNotFound.

	healMRFMetaFormat    = 1
	healMRFMetaVersionV1 = 1
)

// PartialOperation is a successful upload/delete of an object
// but not written in all disks (having quorum)
type PartialOperation struct {
	Bucket              string
	Object              string
	VersionID           string
	Versions            []byte
	SetIndex, PoolIndex int
	Queued              time.Time

		for j := range setDriveCount {
			newFormat := format.Clone()
			newFormat.Erasure.This = format.Erasure.Sets[i][j]
			formats[i*setDriveCount+j] = newFormat
		}
	}

	// Return a format from list of formats in quorum.
	quorumFormat, err := getFormatErasureInQuorum(formats)
	if err != nil {
		t.Fatal(err)
	}

	// Check if the reference format and input formats are same.

	case <-ctx.Done():
		t.Fatal("Lock context canceled which is not expected")
	case <-timer.C:
	}

	// Should be safe operation in all cases
	dm.Unlock(t.Context())
}

// Test canceling context while quorum servers report lock not found
func TestFailedRefreshLock(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping test in short mode.")
	}

	// Simulate Refresh response to return no locking found

- Any unrecognized disks - return failure

Some disks are offline and we have quorum.
-----------------
- Some unformatted - format all and return success,
  treat disks offline as corrupted.
- Any JBOD inconsistent - return failure
- Some are corrupt (missing format.json)
- Any unrecognized disks - return failure

No read quorum
-----------------
failure for all cases.